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Gastroentérologie Clinique et Biologique
Vol 29, N° 8-9  - août 2005
pp. 858-860
Doi : GCB-8-9-2005-29-8-0399-8320-101019-200515049
Maladies kystiques du foie
De l'embryologie aux malformations
 
Figure 1

Figure 1. Représentation schématique de la plaque ductale et de son remodelage.À gauche : double couche de cellules biliaires constituant la plaque ductale initiale. Au centre : remodelage de la plaque ductale ; dilatations tubulaires de certains segments et disparition du reste de la plaque ductale initiale. À droite : incorporation des tubules dans le mésenchyme portal (VP = veinule porte).
Figure 1. Embryonic ductal plate and its remodeling.Left: initial ductal plate with the typical double layer of biliary cells. Middle: remodeling of the ductal plate, with tubular dilatation in some segments and disappearance of most of the ductal plate. Right: incorporation of the tubular segments within the portal mesenchyma. Note the presence of a portal vein branch in the center of the embryonic portal space.
Figure 2

Figure 2. Représentation schématique de la malformation de la plaque ductale.À gauche : défaut complet de remodelage de la plaque ductale qui apparaît comme un anneau continu de voies biliaires dilatées. Au centre et à a droite : remodelage incomplet de la plaque ductale qui apparaît comme un anneau presque continu de voies biliaires dilatées, avec une projection polypoïde du mésenchyme portal ou comme un cercle discontinu de voies biliaires dilatées (VP : veinule porte).
Figure 2. Ductal plate malformation. Schematic representation of the ductal plate malformation. Left: complete lack of remodeling of the ductal plate, which appears as a continuous circular dilated duct. Middle and right: incomplete remodeling of the ductal plate, which appears as a dilated bile duct with a polypoid projection of mesenchymal tissue or as an interrupted circle of dilated bile ducts. Note the presence of a portal vein branch in the center of the ductal plate malformation.


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